| 100 | x | × | 3 50 | + | ( | 100 | − | 100 | x | ) | ( | 9 | ÷ | 2 | ) | = | 201 40 |
| 方程左边 = | 6 | x | + | ( | 100 | − | 100 | x | ) | ( | 9 | ÷ | 2 | ) |
| 6 | x | + | ( | 100 | − | 100 | x | ) | ( | 9 | ÷ | 2 | ) | = | 201 40 |
| 方程左边 = | 6 | x | + | 100 | ( | 9 | ÷ | 2 | ) | − | 100 | x | ( | 9 | ÷ | 2 | ) |
| = | 6 | x | + | 100 | × | 9 | ÷ | 2 | − | 100 | x | ( | 9 | ÷ | 2 | ) |
| = | 6 | x | + | 450 | − | 100 | x | ( | 9 | ÷ | 2 | ) |
| = | 6 | x | + | 450 | − | 100 | x | × | 9 | ÷ | 2 |
| = | 6 | x | + | 450 | − | 450 | x |
| = | - | 444 | x | + | 450 |
| - | 444 | x | + | 450 | = | 201 40 |
| - | 444 | x | = | 201 40 | − | 450 |
| - | 444 | x | = | - | 17799 40 |
17799 40 | = | 444 | x |
| 444 | x | = | 17799 40 |
| x | = | 17799 40 | ÷ | 444 |
| = | 17799 40 | × | 1 444 |
| = | 5933 40 | × | 1 148 |
| x | = | 5933 5920 |
| x | = | 1.002196 |